At 12:54 PM 6/28/00 +0100, declan mckibben wrote:

>Hi, whenever I make a new nat rule in fw-1 (on the IP440 platform) I
>have to wait ages for our ISP's cisco 3600 (upstream) to update its arp
>cache. I don't have access to this and would be beaten badly if i
>rebooted the router. What is the default interval for this cache to
>update on the 3600 and is there a way of forcing an arp cache flush?



I haven't touched a Cisco for a while but from what I remember, arp cache 
updates occur in 20 minutes.  The command to clear the arp cache (if you 
have access to the Cisco) is simply:

clear arp-cache


-- Joe



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